As far as I can understand, the main problem we have with the GFDL is that you have to include the entire text of the license if you want to use something that is GFDL. Why not, in the next GFDL version, just remove the clause that says you have to include the entire license, and just say it's sufficient to state that the material is GFDL and credit the author(s) in the appropriate manner? Wouldn't that - for the everyday person - accomplish exactly the same as switching to CC-by-SA?

A bit of a follow-up to this question: If the FSF modifies the GFDL to be compatible with CC-BY-SA, wouldn't that negate the need to migrate from one to the other? If the two licenses were fully-compatible to the point that migration was possible, wouldn't we already be getting everything we want out of the GFDL anyway? If the GFDL is modified to suit our needs as well as the CC-BY-SA does, why is there a need to migrate?

--Andrew Whitworth